diff --git a/src/org/thoughtcrime/securesms/loki/LokiPreKeyBundleStore.kt b/src/org/thoughtcrime/securesms/loki/LokiPreKeyBundleStore.kt
index 5c81f37630..e7afe1a7b7 100644
--- a/src/org/thoughtcrime/securesms/loki/LokiPreKeyBundleStore.kt
+++ b/src/org/thoughtcrime/securesms/loki/LokiPreKeyBundleStore.kt
@@ -3,22 +3,22 @@ package org.thoughtcrime.securesms.loki
 import android.content.Context
 import org.thoughtcrime.securesms.database.DatabaseFactory
 import org.whispersystems.libsignal.state.PreKeyBundle
-import org.whispersystems.signalservice.loki.messaging.LokiPreKeyBundleStore
+import org.whispersystems.signalservice.loki.messaging.LokiPreKeyBundleStoreProtocol
 
 class LokiPreKeyBundleStore(val context: Context) : LokiPreKeyBundleStoreProtocol {
 
     companion object {
-        val FILE_LOCK = Object()
+        private val fileLock = Object()
     }
 
     override fun getPreKeyBundle(pubKey: String): PreKeyBundle? {
-        synchronized (FILE_LOCK) {
+        synchronized (fileLock) {
             return DatabaseFactory.getLokiPreKeyBundleDatabase(context).getPreKeyBundle(pubKey)
         }
     }
 
     override fun removePreKeyBundle(pubKey: String) {
-        synchronized (FILE_LOCK) {
+        synchronized (fileLock) {
             DatabaseFactory.getLokiPreKeyBundleDatabase(context).removePreKeyBundle(pubKey)
         }
     }